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Festo
173805
Filter regulator LFR-3/4-D-MAXI-A-NPT
The Festo part number 173805 is a Series D industrial component in a Maxi size configured for vertical mounting with accessories. It features a 40 µm filtration grade, a fully automatic condensate drain with an 80 cm³ max condensate volume, a metal bowl guard, and a normal nominal flow rate of 9700 l/min at an operating pressure range of 0.2 MPa to 1.2 MPa. Operating with compressed air as per ISO 8573-1:2010 [7:9:-] or inert gases, this 1370 g unit achieves an output air quality class of ISO 8573-1:2010 [7:8:4] and maintains a moderate corrosion resistance class of CRC 2. Submit the exact part number, quantity, and application requirements to request a quote.
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Request a QuoteWhy no listed price?
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
- Manufacturer
- Festo
- Part number
- 173805
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 173805.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- Size
- Maxi
- Series
- D
- Mounting position
- Vertical
- Grade of ltration
- 40 µm
- Condensate drain
- Fully automatic
- Max. condensate volume
- 80 cm³
- Bowl guard
- Metal bowl guard
- Operating pressure
- 0.2 MPa...1.2 MPa | 2 bar...12 bar
- Max. pressure hysteresis
- 0.4 bar
- Normal nominal ow rate (normalized to DIN 1343)
- 9700 l/min
- Operating medium
- Compressed air as per ISO 8573-1:2010 [7:9:-] | Inert gases
- Information on operating and pilot media
- Operation with oil lubrication possible (required for further use)
- Corrosion resistance class (CRC)
- 2 - Moderate corrosion stress
- LABS (PWIS) conformity
- VDMA24364-B1/B2-L
- Storage temperature
- -10 °C...60 °C
- Air quality class at the output
- Compressed air as per ISO 8573-1:2010 [7:8:4] | Inert gases
- Temperature of medium
- 5 °C...60 °C
- Ambient temperature
- 5 °C...60 °C
- Product weight
- 1370 g
- Type of mounting
- With accessories
- Pneumatic connection 1
- 3/4 NPT
- Pneumatic connection 2
- 3/4 NPT
- Note on materials
- RoHS compliant
- Housing material
- Die-cast zinc
- Material of bowl
- PC
Engineering context
Identification and RFQ Guidance
What to include in your RFQ
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Technical verification
Our sourcing response is prepared against Festo 173805. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.